Final answer:
Statement 4 is incorrect regarding split forms because you cannot highlight a different record in both parts of the form at the same time. The form and datasheet views are synchronized in a split form, and selecting a record in one part updates the other. Discussions about data grouping or table comparison are not relevant to the split form question.
Step-by-step explanation:
The statement that is NOT true regarding split forms is the fourth option: 'In a split form, there are buttons on the Navigation bar to move only from record to record, and each record shown at the top is the record highlighted in the datasheet at the same time.' This statement is incorrect because when you highlight a different record in one part of a split form, it does not mean that the same record is automatically highlighted in the other part.
In a split form, you generally view one record in detail in the form view, while also being able to see and navigate through a table or list of records in the datasheet view. The form part and the datasheet part are synchronized with each other so that selecting a record in one will update the other; however, it is not possible to highlight a different record in the form part and the datasheet part at the same time.
In addressing the question about the correctness of tables, or the way to group data, we are not referring to split forms directly as the question is specific to the characteristics of split forms in certain software such as Microsoft Access. Therefore, discussions about alternative data groupings or switching between tables are not applicable to this particular question about split forms.